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CX2SA > SATDIG 04.10.18 04:08l 1005 Lines 33837 Bytes #999 (0) @ WW
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Today's Topics:
1. Upcoming ARISS Contact Schedule as of 2018-10-03 18:00 UTC
(aj9n@???.????
2. The store has been restocked (Bruce)
3. Mir Rpt (Perry Yantis)
4. Test message Ve4amu (rick behma)
5. Re: FoxTelemetry on AO-91 and AO-92 (Albert van Deursen)
6. Re: FoxTelemetry on AO-91 and AO-92 (Burns Fisher)
7. Life satelite status page. (tjschuessler@???????.????
8. Re: Life satelite status page. (Dave Webb KB1PVH)
----------------------------------------------------------------------
Message: 1
Date: Wed, 3 Oct 2018 14:28:04 -0400
From: aj9n@???.???
To: amsat-bb@?????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2018-10-03
18:00 UTC
Message-ID: <1663b2fdad2-1ec4-d4b0@?????????????.???.???????.???>
Content-Type: text/plain; charset=utf-8
Upcoming ARISS Contact Schedule as of 2018-10-03 18:00 UTC
Quick list of scheduled contacts and events:
?
Pell Elementary School,?Newport, RI, telebridge via ON4ISS
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Ricky Arnold KE5DAU
Contact was successful: Tue 2018-10-02 17:45:06 UTC 85 deg (***)
?
Watch for a live simulacast at: http://bit.ly/RIspacechat3 OR
https://livestream.com/accounts/9685187/ISS2018 (***)
?
Amur University, direct via TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Sergei Propopev
Contact is a go for Wed 2018-10-10 08:00 UTC
?
Kursk University, direct via TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Sergei Propopev
Contact is a go for Fri 2018-10-12 10:40 UTC
?
Allen Park Elementary School, Lee County School District, Ft. Myers, FL,
direct via W?CTL
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Serena Aunon-Chancellor KG5TMT
Contact is a go for: Mon 2018-10-08 17:05:17 UTC 59 deg
?
Robert-Mayer-Gymnasium, Heilbronn, Germany and Realschule & Gymnasium
Weingarten, Weingarten, Germany, direct via DN1RMG and DN2RV
The ISS callsign is presently scheduled to be DP?ISS
The scheduled astronaut is Alexander Gerst KF5ONO
Contact is a go for: Wed 2018-10-10 14:03:32 UTC 61 deg
?
?
If you are interested in applying for an ARISS contact, please go to
http://www.ariss.org/apply-to-host-an-ariss-contact.html
?
The information below is from the ARISS webpage:
?
International Space Station Astronauts are Calling CQ ARISS Students
??? ARISS-US program?s education proposal window open Oct. 1 - Nov. 30, 2018
?
September 25, 2018:? ARISS is seeking proposals beginning October 1, 2018
from US schools, museums, science centers and community youth organizations
(working individually or together) to host amateur radio contacts with an
orbiting crew member aboard the International Space Station (ISS) between
July 1 and December 30, 2019.
?
Each year, ARISS provides tens of thousands of students with learning
opportunities about space technologies, communications, and much more
through the exploration of Amateur Radio and space. ARISS has been pleased
of late, to be one of many possibilities of interest to educators during
NASA?s A Year of Education on Station, which celebrates an almost 12-month
presence of a teacher aboard the ISS.? The ARISS program connects students
to astronauts on the ISS through a partnership between NASA, the Radio
Amateur Satellite Corporation, the American Radio Relay League, other
Amateur Radio global organizations and the worldwide space agencies. The
program?s goal is to inspire students to pursue interests and careers in
science, technology, engineering, and mathematics (STEM) and in Amateur Radio.
?
Educators report regularly that student participation in the ARISS program
stimulates interest in STEM subjects and STEM careers. One educator wrote,
?Many of the middle school students who took part in and attended the ARISS
contact have selected science courses in high school as a result of that
contact.?? Educators are setting up ham radio clubs in schools and learning
centers because of students? interest.
?
ARISS is looking for organizations that will draw large numbers of
participants and integrate the contact into a well-developed, exciting
education plan. Students can learn about satellite communications, wireless
technology, science research conducted on the ISS, radio science, and other
STEM subjects. Students learn to use Amateur Radio to talk directly to an
astronaut and ask their STEM-related questions. ARISS will help educational
organizations locate Amateur Radio groups who can assist with equipment for
a once-in-a-lifetime opportunity for students.
?
The proposal window opens October 1, 2018 and the proposal deadline is
November 30, 2018.
For proposal guidelines and forms and more details, visit:
http://www.ariss.org/hosting-an-ariss-contact-in-the-us.html
?
Proposal webinars for guidance and getting questions answered will be
offered October 11 and October 23, 2018, both at 8 pm Eastern Time. Advance
registration is necessary. To sign up, go to:
ariss-proposal-webinar-fall-2018.eventbrite.com/
?
?
ARISS Contact Applications (Europe, Africa and the Middle East)
?
Schools and Youth organizations in Europe, Africa and the Middle East
interested in setting up an ARISS radio contact with an astronaut on board
the International Space Station are invited to submit an application from
September to October and from February to April.
Please refer to details and the application form at
www.ariss-eu.org/school-contacts.? Applications should be addressed by email
to:? school.selection.manager@????????.???
?
?
?
ARISS Contact Applications (Canada, Central and South America, Asia and
Australia and Russia)
?
Organizations outside the United States can apply for an ARISS contact by
filling out an application.? Please direct questions to the appropriate
regional representative listed below. If your country is not specifically
listed, send your questions to the nearest ARISS Region listed. If you are
unsure which address to use, please send your question to the ARISS-Canada
representative; they will forward your question to the appropriate
coordinator.
?
For the application, click here.
ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD
ARISS-Japan, Asia, Pacific and Australia: Keigo Komuro, JA1KAB, Japan
Amateur Radio League (JARL)
ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR)
?
******************************************************************************
ARISS is always glad to receive listener reports for the above contacts.?
ARISS thanks everyone in advance for their assistance.? Feel free to send
your reports to aj9n@?????.??? or aj9n@???.???.
?
Listen for the ISS on the downlink of 145.8? MHz.
?
******************************************************************************
*
?
All ARISS contacts are made via the Kenwood radio unless otherwise noted.
?
******************************************************************************
*
Several?of you have sent me emails asking about the RAC ARISS website and
not being able?to get in.? That has now been changed to?
http://www.ariss.org/
Note that there are links to other ARISS websites from this?site.
****************************************************************************
Looking?for something new to do?? How about receiving DATV from the ISS???
If interested, then please go to the ARISS-EU website for complete?
details.? Look for the buttons indicating Ham?Video.? ? ? ? ? ? ? ? ? ? ? ?
? ?
? ? ? ? ? ? ? ? ? ? ?
http://www.ariss-eu.org/? ?
?
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight.? Contact Kerry at kbanke@?????????.???
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:?
Satoshi 7M3TJZ with 135
Francesco IK?WGF with 132
Gaston ON4WF with 123
Sergey RV3DR with 107
****************************************************************************
The?webpages listed below were all reviewed for accuracy.? Out of date
webpages?were removed, and new ones have been added.? If there are additional
ARISS?websites I need to know about, please let me know.
Note, all times?are approximate.? It is recommended that you do your own
orbital prediction?or start listening about 10 minutes before the listed
time.
All dates and?times listed follow International Standard ISO 8601 date and
time format?YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of?2018-10-03 18:00 UTC.? (***)
Here you will find a listing of all scheduled?school contacts, and
questions, other ISS related websites, IRLP and?Echolink websites, and
instructions for any contact that may be streamed?live.??
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
http://www.amsat.org/amsat/ariss/news/arissnews.txt
Total number?of ARISS ISS to earth school events is 1261. (***)
Each school counts as 1?event.
Total number of ARISS ISS to earth school contacts is 1207. (***)
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is?47.
A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Please?feel free to contact me if more detailed statistics are needed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The?following US states and entities have never had an ARISS contact:
Delaware, South Dakota, Wyoming, American?Samoa, Guam, Northern Marianas
Islands, and the Virgin Islands.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
QSL?information may be found at:??
http://www.ariss.org/qsl-cards.html?
ISS callsigns:? DP?ISS, IR?ISS, NA1SS, OR4ISS,?RS?ISS
****************************************************************************
The successful school list has been updated as of 2018-10-03 18:00 UTC. (***)
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
Frequency? chart for packet, voice, and crossband repeater modes showing
Doppler? correction? as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf
Listing?of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf
Check out the Zoho reports of the ARISS?contacts
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
Exp. 55 on orbit
Drew Feustel
Oleg Artemyev
Ricky Arnold KE5DAU
?
Exp. 56 on orbit
Serena Aunon-Chancellor KG5TMT
Alexander Gerst KF5ONO
Sergei Propopev
****************************************************************************
73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
------------------------------
Message: 2
Date: Wed, 3 Oct 2018 16:22:50 -0500
From: Bruce <kk5do@????.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: [amsat-bb] The store has been restocked
Message-ID: <0278d614-6f93-2687-5bde-cda73ffc7681@????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Martha has finished going up and down the isles and we have updated the
quantities for the AMSAT 2018 Golf Shirt and the AMSAT 2018 Tee-Shirt.
Some of the sizes are now in stock and some have been
increased/decreased. If you were looking for one and we did not have
your size, take another look.
73...bruce
--
Bruce Paige, KK5DO
AMSAT Director Contests and Awards
AMSAT Board Member 2016-2020
ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE
Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
Also live streaming MP3 at http://www.amsatnet.com
Podcast at http://www.amsatnet.com/podcast.xml or iTunes
Latest satellite news on the ARRL Audio News
http://www.arrl.org
AMSAT on Twitter http://www.twitter.com/amsat
------------------------------
Message: 3
Date: Wed, 3 Oct 2018 11:07:47 +0000 (UTC)
From: Perry Yantis <py41@???.???>
Subject: [amsat-bb] Mir Rpt
Message-ID: <484925672.3407027.1538564867424@????.?????.???>
Content-Type: text/plain; charset=UTF-8
I searched my computer log and show that between 10/23/96 and 12/31/97 I
worked 65 qso's through the uhf Mir Repeater.?
Perry WB8OTH
py41@???.???
sent from my Apple Macbook Pro
------------------------------
Message: 4
Date: Wed, 3 Oct 2018 19:02:25 +0000
From: rick behma <duntryin@???????.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: [amsat-bb] Test message Ve4amu
Message-ID:
<BN6PR1801MB20333AF4D7AF1D3619F0CD22C8E90@???????????????.????????.????.??????
?.???>
Content-Type: text/plain; charset="us-ascii"
Ve4amu...
Sent from my iPhone
------------------------------
Message: 5
Date: Thu, 4 Oct 2018 00:40:18 +0200
From: "Albert van Deursen" <avdeur@????.??>
To: "'Burns Fisher'" <burns@??????.??>, "'Stephen E. Belter'"
<seb@??????.???>, <hbasri.schiers6@?????.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] FoxTelemetry on AO-91 and AO-92
Message-ID: <004801d45b6a$101fd690$305f83b0$@??>
Content-Type: text/plain; charset="utf-8"
Hi, I reacted two days ago on the SDR-radio.groups.io (forum users Console
SDR software by Simon Brown) to a post from Hasan N0AN saying :
I have been following Simon's advice trying to decode Fox1A with a good pass
this evening. Plse note that until let's say 8 months ago I was perfectly
able to decode these DUV signals using the standard Fox Telem decoder ver
1.06r. Than for reasons unknown to me all of a sudden I no longer could
decode any packets on any of these 3 birds. Tried several options like
reinstalling old version and again new version, trying different option
within the program but with zero result. Also note that I always use Console
as my Rx. Anyway gave up as also heard stories that the signal conditions of
these sats were decreasing. ( against this is that I see EU stations still
uploading valid packets to the AMSAT server...) Still in my backhead there
was always something like "isn't this just an audio issue ?? Anyway will
try later this evening a pass from AO-92 ( 23:09 local time 44 degrees EL
using SDR# and the HF+.. Also note that I used to use the WFM 15k option (
not NFM) as this was advised (
I vaguely remember) Not 100% sure though 73 .Will let you know the outcome
of course. Also hope to learn the experience of other ham satellite decoders
using V3. 73 Albert PD0OXW
=============
Well now this evening / tonight 22.00 UTC I bumped into a Fox1A pass at 40
degrees which was dead silent so only once (a very clear) "Veronica" kicked
in there was DUV signal...Flabbergasted I noted that the "eye" was perfect
and during two identifiers I could decode 4 packets ( confirmed on Amsat
Server)...
I wonder why after months of inability to decode these signals all of a
sudden the old status (correct decoding as since the start of the Telem
software) seems to be back (without any change in de SDR Console software).
Can it be the "the regular" HAM voice activity degrades the DUV download ?
Of course will try to check on all 3 85/91/92 tomorrow and revert. (plse
note I use WIMO 2/70 X-CUADS antenna's steered by G-5500)
73
Albert PD0OXW
-----Original Message-----
From: Burns Fisher [mailto:burns@??????.???
Sent: 02 October 2018 22:26
To: Stephen E. Belter
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] FoxTelemetry on AO-91 and AO-92
Hasan sent me a screen shot of his attempt to collect data from one of the
Fox satellites. I also showed it to Chris, G0KLA, the author of FoxTelem.
We both agree that the problem is likely to be filtering. SOMEWHERE in
there is a high pass filter that is not allowing enough of the low
frequencies through. Another possibility is not FM demodulating a wide
enough bandwidth. You could try wide FM rather than narrow, or if it is
adjustable, set it to 5KHz.
Chris also says that he expects to be able to decode if the signal is only
a few dB above the noise, so chances are good that a weak signal is not the
problem.
Good luck and 73,
Burns WB1FJ
On Tue, Oct 2, 2018 at 10:57 AM, Burns Fisher <burns@??????.??> wrote:
> Let me add just a bit more. I have a homebrew Lindenblad (circular
> polarity, omni) with an AMSAT wide band preamp out at the antenna, going to
> a FunCube Dongle that is decoded directly by FoxTelem. I get hundreds of
> packets per day with it. I have also used an Arrow dual-band J-pole
> mounted at 45 degrees and an AirSpy wide-band preamp with nearly as good
> results.
>
> My experience is that I CAN get decodes without having completely full
> quieting, but it still has to be "pretty good". I also completely agree
> with Steve that the big trick is to be sure you have no high pass
> filtering. Best is to use a software defined radio (I've succeeded with
> both HDSDR and SDR# ) with virtual audio cable if you don't have a FunCube
> Dongle.
>
> Good luck! Let us know how you are doing. Maybe a screen shot of
> FoxTelem when there is a signal coming would be helpful (although I think
> pictures don't go through on this mailing list).
>
> 73,
>
> Burns WB1FJ
> Fox Flight Software
>
> On Tue, Oct 2, 2018 at 10:46 AM, Stephen E. Belter <seb@??????.???> wrote:
>
>> Hasan,
>>
>> The answer to your question about the difficulty is yes, and no.
>>
>> There are lots of things that can block the decoding of the DUV. Get any
>> *one* of them wrong, and it doesn't work. Get them *all* right, it works
>> great.
>>
>> I am not an expert, but here are a few suggestions.
>>
>> You need a solid, full-quieting signal to decode the packets. Mark is
>> right; this is much more difficult with an omnidirectional antenna like an
>> eggbeater. With 80-feet of coax, you probably need a low-noise preamp at
>> the antenna (not in the shack). When you make a voice QSO, is the signal
>> really full-quieting?
>>
>> The DUV information is very, very low frequency. You need to be
>> receiving everything from DC to 300 hertz, and passing it to FoxTelem.
>> Typical FM receivers (conventional analog and software defined) filter out
>> the low frequencies so as to not include CTCSS tones which add an annoying
>> rumble or hum to the audio. So carefully check and adjust or remove any
>> low-frequency filtering.
>>
>> Using a patch cord to connect the speaker output to a sound card input is
>> unlikely to work. You need to be using a virtual audio cable (software
>> utility that simulates two sound cards connected by a patch cord). Paul is
>> correct, check the sample rates on the SDRC output, the input and output of
>> your VAC, and the input to FoxTelem. They should all be identical.
>>
>> Check the levels to make sure nothing is clipping or overloaded: Windows
>> levels between the HF+ and SDRC, SDRC output, and VAC input and output.
>> I'm using a FUNcube Pro+ dongle and have the Windows level on the FCD set
>> to 9 instead of the default 100. The best level for your HF+ may be
>> different.
>>
>> I'm sorry you're having trouble. Maybe these hints and the suggestions
>> of others will help.
>>
>> 73, Steve N9IP
>> --
>> Steve Belter, seb@??????.???
>>
>>
>>
>> ?On 10/2/18, 7:56 AM, "AMSAT-BB on behalf of Hasan al-Basri" <
>> amsat-bb-bounces@?????.??? on behalf of hbasri.schiers6@?????.???> wrote:
>>
>> Several of us are having a heck of a time getting any telemetry from
>> the
>> above birds. DUV just isn't producing anything.
>>
>> We hear both well enough to make QSOs on the FM transponders, but we
>> can't
>> seem to get any data thru the decoder.
>>
>> Is it really that much more difficult to get the TLM via DUV than to
>> listen to a voice on the 2m downlink?
>>
>> Setup:
>> 2m Eggbeater at 7', fed with 80' of 9913
>> AirSpy HF+ SDR
>> SDRC V3 Software
>> FMN 12 kHz (Highpass Filter not checked) and FMW both tried, neither
>> produce any decoded data.
>>
>> I am getting telemetry just fine from AO-73, and am also getting
>> perfect Wx
>> pix on 137.100 with SNR's of > 30 dB.
>>
>> Am I doing something wrong, or is it just that hard to get FoxTelem
>> to work
>> with DUV?
>>
>> Thanks for any help. 73,
>> N0AN
>> Hasan
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed
>> are solely those of the author, and do not reflect the official views
>> of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite
>> program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed
>> are solely those of the author, and do not reflect the official views of
>> AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>
>
------------------------------
Message: 6
Date: Wed, 3 Oct 2018 18:44:48 -0400
From: Burns Fisher <burns@??????.??>
To: Albert van Deursen <avdeur@????.??>
Cc: AMSAT BB <amsat-bb@?????.???>, "Stephen E. Belter"
<seb@??????.???>
Subject: Re: [amsat-bb] FoxTelemetry on AO-91 and AO-92
Message-ID:
<CABX7KxXh4nBo7sdXsR-nYSKMnbRzwfCc7u2Qdv-=ifepQ5Tk4w@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hmm. Interesting. My experience has been that the voice over data has no
effect, and that, in fact, I'm more likely to miss packets in a "beacon"
(i.e. with Veronica) because of not locking onto the right frequency right
away. Your mileage obviously varies!
I guess one thing to consider is that Veronica was high-pass filtered (to
make a clear space for the telemetry) manually before being loaded onto the
satellite, while repeater activity is obviously filtered in real time with
a different filter. But that does not explain why it changed over time.
On Wed, Oct 3, 2018 at 6:40 PM, Albert van Deursen <avdeur@????.??> wrote:
> Hi, I reacted two days ago on the SDR-radio.groups.io (forum users
> Console SDR software by Simon Brown) to a post from Hasan N0AN saying :
> I have been following Simon's advice trying to decode Fox1A with a good
> pass this evening. Plse note that until let's say 8 months ago I was
> perfectly able to decode these DUV signals using the standard Fox Telem
> decoder ver 1.06r. Than for reasons unknown to me all of a sudden I no
> longer could decode any packets on any of these 3 birds. Tried several
> options like reinstalling old version and again new version, trying
> different option within the program but with zero result. Also note that I
> always use Console as my Rx. Anyway gave up as also heard stories that the
> signal conditions of these sats were decreasing. ( against this is that I
> see EU stations still uploading valid packets to the AMSAT server...) Still
> in my backhead there was always something like "isn't this just an audio
> issue ?? Anyway will try later this evening a pass from AO-92 ( 23:09
> local time 44 degrees EL using SDR# and the HF+.. Also note that I used to
> use the WFM 15k option ( not NFM) as this was advised ( I vaguely remember)
> Not 100% sure though 73 .Will let you know the outcome of course. Also hope
> to learn the experience of other ham satellite decoders using V3. 73 Albert
> PD0OXW
> =============
> Well now this evening / tonight 22.00 UTC I bumped into a Fox1A pass at 40
> degrees which was dead silent so only once (a very clear) "Veronica" kicked
> in there was DUV signal...Flabbergasted I noted that the "eye" was perfect
> and during two identifiers I could decode 4 packets ( confirmed on Amsat
> Server)...
>
> I wonder why after months of inability to decode these signals all of a
> sudden the old status (correct decoding as since the start of the Telem
> software) seems to be back (without any change in de SDR Console software).
> Can it be the "the regular" HAM voice activity degrades the DUV download ?
> Of course will try to check on all 3 85/91/92 tomorrow and revert. (plse
> note I use WIMO 2/70 X-CUADS antenna's steered by G-5500)
> 73
> Albert PD0OXW
>
> -----Original Message-----
> From: Burns Fisher [mailto:burns@??????.???
> Sent: 02 October 2018 22:26
> To: Stephen E. Belter
> Cc: amsat-bb@?????.???
> Subject: Re: [amsat-bb] FoxTelemetry on AO-91 and AO-92
>
> Hasan sent me a screen shot of his attempt to collect data from one of the
> Fox satellites. I also showed it to Chris, G0KLA, the author of FoxTelem.
> We both agree that the problem is likely to be filtering. SOMEWHERE in
> there is a high pass filter that is not allowing enough of the low
> frequencies through. Another possibility is not FM demodulating a wide
> enough bandwidth. You could try wide FM rather than narrow, or if it is
> adjustable, set it to 5KHz.
>
> Chris also says that he expects to be able to decode if the signal is only
> a few dB above the noise, so chances are good that a weak signal is not the
> problem.
>
> Good luck and 73,
>
> Burns WB1FJ
>
> On Tue, Oct 2, 2018 at 10:57 AM, Burns Fisher <burns@??????.??> wrote:
>
> > Let me add just a bit more. I have a homebrew Lindenblad (circular
> > polarity, omni) with an AMSAT wide band preamp out at the antenna, going
> to
> > a FunCube Dongle that is decoded directly by FoxTelem. I get hundreds of
> > packets per day with it. I have also used an Arrow dual-band J-pole
> > mounted at 45 degrees and an AirSpy wide-band preamp with nearly as good
> > results.
> >
> > My experience is that I CAN get decodes without having completely full
> > quieting, but it still has to be "pretty good". I also completely agree
> > with Steve that the big trick is to be sure you have no high pass
> > filtering. Best is to use a software defined radio (I've succeeded with
> > both HDSDR and SDR# ) with virtual audio cable if you don't have a
> FunCube
> > Dongle.
> >
> > Good luck! Let us know how you are doing. Maybe a screen shot of
> > FoxTelem when there is a signal coming would be helpful (although I think
> > pictures don't go through on this mailing list).
> >
> > 73,
> >
> > Burns WB1FJ
> > Fox Flight Software
> >
> > On Tue, Oct 2, 2018 at 10:46 AM, Stephen E. Belter <seb@??????.???>
> wrote:
> >
> >> Hasan,
> >>
> >> The answer to your question about the difficulty is yes, and no.
> >>
> >> There are lots of things that can block the decoding of the DUV. Get
> any
> >> *one* of them wrong, and it doesn't work. Get them *all* right, it
> works
> >> great.
> >>
> >> I am not an expert, but here are a few suggestions.
> >>
> >> You need a solid, full-quieting signal to decode the packets. Mark is
> >> right; this is much more difficult with an omnidirectional antenna like
> an
> >> eggbeater. With 80-feet of coax, you probably need a low-noise preamp
> at
> >> the antenna (not in the shack). When you make a voice QSO, is the
> signal
> >> really full-quieting?
> >>
> >> The DUV information is very, very low frequency. You need to be
> >> receiving everything from DC to 300 hertz, and passing it to FoxTelem.
> >> Typical FM receivers (conventional analog and software defined) filter
> out
> >> the low frequencies so as to not include CTCSS tones which add an
> annoying
> >> rumble or hum to the audio. So carefully check and adjust or remove any
> >> low-frequency filtering.
> >>
> >> Using a patch cord to connect the speaker output to a sound card input
> is
> >> unlikely to work. You need to be using a virtual audio cable (software
> >> utility that simulates two sound cards connected by a patch cord).
> Paul is
> >> correct, check the sample rates on the SDRC output, the input and
> output of
> >> your VAC, and the input to FoxTelem. They should all be identical.
> >>
> >> Check the levels to make sure nothing is clipping or overloaded:
> Windows
> >> levels between the HF+ and SDRC, SDRC output, and VAC input and output.
> >> I'm using a FUNcube Pro+ dongle and have the Windows level on the FCD
> set
> >> to 9 instead of the default 100. The best level for your HF+ may be
> >> different.
> >>
> >> I'm sorry you're having trouble. Maybe these hints and the suggestions
> >> of others will help.
> >>
> >> 73, Steve N9IP
> >> --
> >> Steve Belter, seb@??????.???
> >>
> >>
> >>
> >> ?On 10/2/18, 7:56 AM, "AMSAT-BB on behalf of Hasan al-Basri" <
> >> amsat-bb-bounces@?????.??? on behalf of hbasri.schiers6@?????.???>
> wrote:
> >>
> >> Several of us are having a heck of a time getting any telemetry from
> >> the
> >> above birds. DUV just isn't producing anything.
> >>
> >> We hear both well enough to make QSOs on the FM transponders, but we
> >> can't
> >> seem to get any data thru the decoder.
> >>
> >> Is it really that much more difficult to get the TLM via DUV than
> to
> >> listen to a voice on the 2m downlink?
> >>
> >> Setup:
> >> 2m Eggbeater at 7', fed with 80' of 9913
> >> AirSpy HF+ SDR
> >> SDRC V3 Software
> >> FMN 12 kHz (Highpass Filter not checked) and FMW both tried, neither
> >> produce any decoded data.
> >>
> >> I am getting telemetry just fine from AO-73, and am also getting
> >> perfect Wx
> >> pix on 137.100 with SNR's of > 30 dB.
> >>
> >> Am I doing something wrong, or is it just that hard to get FoxTelem
> >> to work
> >> with DUV?
> >>
> >> Thanks for any help. 73,
> >> N0AN
> >> Hasan
> >> _______________________________________________
> >> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum
> available
> >> to all interested persons worldwide without requiring membership.
> >> Opinions expressed
> >> are solely those of the author, and do not reflect the official
> views
> >> of AMSAT-NA.
> >> Not an AMSAT-NA member? Join now to support the amateur satellite
> >> program!
> >> Subscription settings: http://www.amsat.org/mailman/
> listinfo/amsat-bb
> >>
> >>
> >> _______________________________________________
> >> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> >> to all interested persons worldwide without requiring membership.
> >> Opinions expressed
> >> are solely those of the author, and do not reflect the official views of
> >> AMSAT-NA.
> >> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> >> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >>
> >
> >
>
>
>
------------------------------
Message: 7
Date: Wed, 3 Oct 2018 20:45:30 -0500
From: <tjschuessler@???????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] Life satelite status page.
Message-ID: <005401d45b83$ef76ca10$ce645e30$@???????.???>
Content-Type: text/plain; charset="us-ascii"
I think I asked this some time ago, and if I got an answer, I forgot.
So on the Satellite status page, http://www.amsat.org/status/ there are
listings for AO-98 and AO-99 which have both been there for a while, but are
yet to be launched and designated. Latest Oscar number is 94 for the
Chinese lunar orbiting birds. So why are these there and more oddly, why
are there always at least a few reports of "Heard" or "Telemetry" for these
non-existent satellites?
Just curious.
Tom Schuessler, N5HYP
EM12ms
------------------------------
Message: 8
Date: Wed, 3 Oct 2018 21:54:29 -0400
From: Dave Webb KB1PVH <kb1pvh@?????.???>
To: tjschuessler@???????.???
Cc: AMSAT -BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Life satelite status page.
Message-ID:
<CAEMY9Fdm-woqc2UavYL_cQ8dx0U4+mLDpF=M-imNvMbAoP_=tg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
>From the description on that page.
"If you want to practice reporting without affecting the real data, please
select the dummy-satellites AO-98 and AO-99."
Dave-KB1PVH
Sent from my Galaxy S9
On Wed, Oct 3, 2018, 9:46 PM <tjschuessler@???????.???> wrote:
> I think I asked this some time ago, and if I got an answer, I forgot.
>
> So on the Satellite status page, http://www.amsat.org/status/ there are
> listings for AO-98 and AO-99 which have both been there for a while, but
> are
> yet to be launched and designated. Latest Oscar number is 94 for the
> Chinese lunar orbiting birds. So why are these there and more oddly, why
> are there always at least a few reports of "Heard" or "Telemetry" for these
> non-existent satellites?
>
> Just curious.
>
> Tom Schuessler, N5HYP
> EM12ms
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@?????.???.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 13, Issue 325
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